Metal container having reinforced end seam



June 3, 1952 M. ANSEELE 2,598,952

METAL CONTAINER HAVING REINFORCED END SEAM Filed Feb. 21, 1948 J 9 4 3fig I a Z, q {i W1 @11 129: 2 flja 414 11 L g 3 7 z .a 129m 1 121 11.1311

a B 3 z a 470 W O? 10 5 ilfgrfd lq'gz19 229(20 172 21 129x22 MAR/EA/VJEELE Pm-M d sign Patented June 3, 1952 METAL CONTAINER HAVINGREINFORCED END SEAM Mari Anseele, Ghent, Belgium, assignor to MarcelDefauw, Ghent, Belgium Application February 21, 1948, Serial No. 10,147In France May 27, 1946 Section 1, Public Law 690, August 8, 1946 Patentexpires May 27, 1966 Different methods have already been proposed forreinforcing the swaging and the moulding in metal containers. It hasbeen proposed to reinforce the body of metal drums by means of more orless deep and numerous mouldings.

My invention has for its object improvements that lead not only to areinforcement of metal containers but also in spite of a small increasein labour expense to a considerable economy of raw material. Theseimprovements consist chiefly in reinforcing all the points of thecontainers that are more energetically strained while reducing to theutmost the amount of material at all points where this can be doneWithout any damage to the container and without impairing the rigidityand resistance of the container. In other words these improvements aimat a more logical distribution of the raw material generally used forthe production of a metal container whereby it is possible through thisimproved distribution to obtain with a same amount of raw material acontainer that resists much better the usual strains or again for aresistance that is the same as that of a container obtained through theapplication of the usual methods I obtain a substantial economy in deadweight and consequently in raw material.

By way of example and with a view to make the invention appear moreclearly, I will disclose various applications of improvements accordingto my invention to a drum of the usual so-called One Trip Drum type.These examples show simple means for reinforcing the edges of certainmouldings of the walls at the location of the bungholes. Thesereinforcements associated with the known reinforcements of the drum bodythrough a number of sufficiently deep small mouldings, allow themanufacture of such drums from metal sheets that are much thinner thanis usually the case, which leads to the result that the drum is asresistant or if desired even more resistant than those generally usedfor such purposes and this is obtained together with an importanteconomy in raw material and a very small increase in labour expense.

It is furthermore obvious that the novel above described reinforcingmethods are applicable not only to oil drums but also to any other typesof containers with swaged covers or else to a container having acomplete opening.

Obviously, also the various methods described hereinafter are applicableeither together or only in part.

Accompanying drawings show by way" of example various forms of executionof my invention.

2 Claims. (Cl. 220-66) Figures 1 to 10 relate to a reinforcement of theflange of the drum.

Figures 11 to 17 relate to a further reinforcement of said flange.

Figures 18 to 22 relate to a reinforcement of certain mouldings.

Figure 23 relates to a reinforcement registering with the bunghole.

As concerns the reinforcement of the drum flanges as illustrated inFigs. 1 to 10, several forms of reinforcement of the crimping of suchedges have already been proposed, among them a treble swaging or againthe incorporation of an outer protecting strip that caps the swagedarrangement. Other means have also been proposed which have for theirgeneral result the additionto the five metal sheet thicknesses providedby the normal swaging generally termed a double swaging, two or threecomplementary sheets thicknesses. These complementary sheet thicknessesare generally set with the normal swaging which has the effect to makethe latter extremely difficult.

The reinforcement of the drum flange according to the present inventionconsists simply in inserting between the walls of the drum body and thelateral wall of the stamped cover, parallel to said body wall, a ring ofsuitable. thickness, 1. e. of a thickness such that it compensates moreor less the reduction in the thickness of the swaging due to the use ofthinner sheets for the body and for the covers or else if desired of astill more considerable thickness. v

In Fig. 1, l designates the reinforcing ring, 2 the wall of the drumbody, 3 one of the covers and 4 the swaging. If for instance, the usualthickness used for the metal sheets is E, the thickness of the swagingis in this case equal to 5E. Now, if metal sheets of a reduced thicknessequal to say e are used, the thickness of the complete swaging is only5e. It is possible with the method according to the present invention toinsert either a strip of a thickness 5E5e or else a stripof a stillgreater thickness so as to increase still more the resistance of thedrum edge. Obviously it is also possible to insert a thinner strip asthere isno definite relationship between the thickness used for the bodyand covers of the drum and for the reinforcing ring.

In order to increase still further the resistance to deformation and inparticular to shocks and also in order to provide an economy of materialfor the reinforcing ring itself, said circle may be shaped in a suitablemanner and it'may appear for instance under the form of abent angle ironas shown in Fig. 2.

The embodiments described hereinabove ofierthe advantage of simplicityand easy executio n W together with a great adaptability. They show alsothe advantage of not making the swaging operation more difiicult as the.sameis generally n made with thin metal sheets in the usual, manner.

4 Thus in Fig. 13, 5 designates a groove provided in the bracket.

Instead of separate brackets, it is-possible to use a complete ringshaped for instance after the manner of an angle bar and bearing against-the wall of the drum body while holding the cover either from theoutside as shown in Fig. 12

1 61 from the inside.

But in order to provide still more resisting re inforcenients, thereinforcing ring may-he located in a manner such that it may beassociatedin the flanging operation and be incorporated thus in thesetting of the covers as showrringl ig.-

4. However this manner of operating is not generally necessary as itis.possible to select as desired the thickness of the reinforcing ringso as to obtain the desired degree of reinforcement without it beingnecessary to this purpose to make the swaging more intricate. Lastly,amore considerable reinforcement of the swagi-ngand consequently of theedgeof the drum isprovided by folding the extra ring over the edge ofthe sheet forming the body of the drum so as tocooperate with a doublethicknessto the hanging and subsequent fianging (-Fig. 5). This leads tothe provision of 9 sheet thicknesses or plies instead of 5 for usualsetting and as the operator may'select as desired the thickness ofhisreinjforcing ring or strip he may thus reinforce the edge of the drumas desired.

However, instead of applying thereto aseparate reinforcing strip, it ispossible, if; it is. desired, and if the result aimed at isbel'ieved'to; be reached, it is possible to obtain a. thickness of'9efor the setting, e being the thickness of the body sheet, this beingobtained through a two fold folding of the very edge of the sheet of1the.body over itself to form thereby the reinforcingring. I With a,view to furthering the positioning of the. reinforcing. ring and in,order to prevent the latter from. falling off. through the actionofrepeated vibrations or of shocks, it is proposed to increase thediameter of the edge of the drum body inside which the ring and coverare to'beinserted (Fig; 6). I

Figs. '1 and 8- illustrate reinforcementsby means of a ring assuming;the shape respectively of a hollow rectangle in cross-section and of asmall suitably shaped beam while Fig. 9 illustrates a reinforcementsimilar to that" of; Fig. 5- but applicable to a drum of. the type thatmaybe completely opened.

Last-1y,v the ring, instead of, beingv made of metal, may be made of anyother material such as, wood (Fig. 10).

An extra reinforcement of the flange is; shown in Figs. 11 to 17.Asa'matterof'factit isof'interest. to proceed with. av still furtherreinforcementof. the edge orflange of the drum and conse uently it isproposed toincorporate to the means described hereinaboveor tosubstitute therefor further. members constituted; by brackets 41bearing; on one hand against the. edge of the drum body and on the otherhand: against the periphery of the cover as; shown in Fig. ll.

Thesebrackets arealso applicable to the outside of the drum inside: theangle. of the; setting portion as illustrated inFig. 12:

The brackets are: preferably provided with. a suitable outline or areprovided with grooves so as to show a maximum resistance to. fiexion.

As disclosed precedingly it is possible to make .useof'an association ofthe diiierent means described. Thus, Fig. 13 shows an association of thesimple reinforcing ring I, with reinforcing brackets 4.

Last-1y, this reinforcing the drum by means of brackets may beassociated with the above described-reinforcing ring and the bracket mayassume in cross-section various shapes such as those illustrated inFigure 14 in which the bracket and ring form a single straight cylinder6; in Figure 15 wherein this. compound bracket and rin 1 is stepped toreceive the cover 3zorinz Figure 16 wherein a particularly resistingoutline 8; is obtained'through a double-fold, forgsecurely holding theperiphery of the cover. It may: also be of. advantage to reinforce teamore considerable extent the part of the drum located: between thesidewalls of thecover and-"the bod'yot the drum. in which case it is ofadvantage for instance to fold over a sufficient breadth the reinforcingring 9 so that it may show a double thick-- ness over said breadth asshown in Fig.- 17.

Turning now to Figs..1-8 to- 2-2 relating to; the reinforcment ofcertain mouldings of the drum; it should be. reminded that when the bodyof; the

drum: is: made of thin metal. sheet, it may be of interest to reinforcecertain. mouldings. and in particular the rolling mouldings carrying.the weight ofthe drum when. the latter is causedto roll over thegroundor turned down over its'side. In other cases it: may beof interestto reinforce other: mouldings in proximity with the edges. of the drumsprovided with. crimped covers '01: adaptedto' be entirely opened. I

It is a .known fact that it is possible to rein-.- force such mouldingsthrough the application. of outer strips that may for instance bemoulded together with the drum body. But such strips if they are notsecured through welding to the body may fall off under the action ofshocks anddonot play their part any more while. they give the drumalmostv unpleasant appearance.

. Furthermore, as the strip is located onthe outside of the drum, itshould be comparatively wide so as to sufilciently match. the outline ofthe roll.- ing moulding.

The improvement according to my invention consists in locating thereinforcing strip or shaped member Ill on the inside of the mouldingwhich removes the above drawbacks while it allows moreover the use ofnarrower strips (Fig. 18) or of a more rational outline such as that ofa thread (Fig. 19), of a tube (Fig. 20), of a solid semicircular member(Fig. 21) or of a hollowsemicircular member (Fig. 22), all of which givewhen located in register with the moulding a resistance of the latter toshocks and to the strain due to the rolling over ground, that isconsiderably increased.

Obviously any other shaped member may be usedto this purpose and suchreinforcingmembers may be made. of any metal or non-metallic material asdesired.

Turning now toFig. 213, relating to the reinforcement infront of. thebunghcles it;shouldbe remembered that the execution cf'drums of thinmetal sheet may require the reinforcement of the wall at the pointcorresponding to the filling and draining bung holes. I

To this purpose supplementary thicknesses or plies of material areprovided through the application at the desired locations of plates orwashers of sheet metal that maybe submitted together with the walls ofthe drum to the cutting and stamping operations required for theformation of the bung holes.

In Fig. 23, H designates the wall of the drum made of thin metal sheetwhile l2 designates the supplementary reinforcing washer.

What I claim is:

1. In a drum or similar container-having a body portion, an end portionof greater diameter than said body portion and a cover fitting into saidend portion of greater diameter; a reinforcing ring located within saidcontainer and having one portion extending axially along an innersurface of said body portion, a second portion extending along the saidend portion of the drum and between the end portion and the cover, and athird portion interconnecting the first and the second portions andextending transversely'thereto.

2. In a drum or similar container having a body portion, an end portionof greater diameter than said body portion and a cover fitting into saidend portion of greater diameter; a reinforcing ring located within saidcontainer and having one portion extending axially along an innersurface of MARIE ANSEELE.

REFERENCES CITED The following references are of record in the flle ofthis patent:

UNITED STATES PATENTS Number Name Date 146,150 Tenney Jan. 6, 1874480,555 Brown Aug. 9, 1892 749,319 McLaughlin Jan. 12, 1904 814,753Wallace Mar. 13, 1906 884,450 Wright Apr. 14, 1908 .1;155,'75l McCueOct. 5, 1915 71,303,465 Du Boise May 13, 1919 2,175,411 Rheem Oct. 10,1939 2,255,964 Blaho Sept. 16-, 1941 2,445,465 Amesburg et al July 20,1948 FOREIGN PATENTS Number Country I Date 212,232 Great Britain July17, 1924 485,567 Great Britain May 1'7. 1938

